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Kong D, Wu J, Kong X, Huang J, Zhao Y, Yang B, Zhao Q, Gu K. Effect of bolus materials on dose deposition in deep tissues during electron beam radiotherapy. J Radiat Res 2024; 65:215-222. [PMID: 38331401 PMCID: PMC10959426 DOI: 10.1093/jrr/rrae001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/27/2023] [Indexed: 02/10/2024]
Abstract
Several materials are utilized in the production of bolus, which is essential for superficial tumor radiotherapy. This research aimed to compare the variations in dose deposition in deep tissues during electron beam radiotherapy when employing different bolus materials. Specifically, the study developed general superficial tumor models (S-T models) and postoperative breast cancer models (P-B models). Each model comprised a bolus made of water, polylactic acid (PLA), polystyrene, silica-gel or glycerol. Geant4 was employed to simulate the transportation of electron beams within the studied models, enabling the acquisition of dose distributions along the central axis of the field. A comparison was conducted to assess the dose distributions in deep tissues. In regions where the percentage depth dose (PDD) decreases rapidly, the relative doses (RDs) in the S-T models with silica-gel bolus exhibited the highest values. Subsequently, RDs for PLA, glycerol and polystyrene boluses followed in descending order. Notably, the RDs for glycerol and polystyrene boluses were consistently below 1. Within the P-B models, RDs for all four bolus materials are consistently below 1. Among them, the smallest RDs are observed with the glycerol bolus, followed by silica-gel, PLA and polystyrene bolus in ascending order. As PDDs are ~1-3% or smaller, the differences in RDs diminish rapidly until are only around 10%. For the S-T and P-B models, polystyrene and glycerol are the most suitable bolus materials, respectively. The choice of appropriate bolus materials, tailored to the specific treatment scenario, holds significant importance in safeguarding deep tissues during radiotherapy.
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Affiliation(s)
- Dong Kong
- Department of Radiation Oncology, Affiliated Hospital of Jiangnan University, No. 1000, Hefeng Road, Wuxi 214122, China
| | - Jia Wu
- Department of Radiation Oncology, Affiliated Hospital of Jiangnan University, No. 1000, Hefeng Road, Wuxi 214122, China
| | - Xudong Kong
- Department of Radiation Oncology, Affiliated Hospital of Jiangnan University, No. 1000, Hefeng Road, Wuxi 214122, China
| | - Jianfeng Huang
- Department of Radiation Oncology, Affiliated Hospital of Jiangnan University, No. 1000, Hefeng Road, Wuxi 214122, China
| | - Yutian Zhao
- Department of Radiation Oncology, Affiliated Hospital of Jiangnan University, No. 1000, Hefeng Road, Wuxi 214122, China
| | - Bo Yang
- Department of Radiation Oncology, Affiliated Hospital of Jiangnan University, No. 1000, Hefeng Road, Wuxi 214122, China
| | - Qing Zhao
- Pharmaceutical Department, Affiliated Hospital of Jiangnan University, No. 1000, Hefeng Road, Wuxi 214122, China
| | - Ke Gu
- Department of Radiation Oncology, Affiliated Hospital of Jiangnan University, No. 1000, Hefeng Road, Wuxi 214122, China
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Zhou Y, Qin X, Hu Q, Qin S, Xu R, Gu K, Lu H. Cross-talk between disulfidptosis and immune check point genes defines the tumor microenvironment for the prediction of prognosis and immunotherapies in glioblastoma. Sci Rep 2024; 14:3901. [PMID: 38365809 PMCID: PMC10873294 DOI: 10.1038/s41598-024-52128-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 01/14/2024] [Indexed: 02/18/2024] Open
Abstract
Disulfidptosis is a condition where dysregulated NAPDH levels and abnormal accumulation of cystine and other disulfides occur in cells with high SLC7A11 expression under glucose deficiency. This disrupts normal formation of disulfide bonds among cytoskeletal proteins, leading to histone skeleton collapse and triggering cellular apoptosis. However, the correlation between disulfidptosis and immune responses in relation to glioblastoma survival rates and immunotherapy sensitivity remains understudied. Therefore, we utilized The Cancer Genome Atlas and The Chinese Glioma Genome Atlas to identify disulfidptosis-related immune checkpoint genes and established an overall survival (OS) prediction model comprising six genes: CD276, TNFRSF 14, TNFSF14, TNFSF4, CD40, and TNFRSF18, which could also be used for predicting immunotherapy sensitivity. We identified a cohort of glioblastoma patients classified as high-risk, which exhibited an upregulation of angiogenesis, extracellular matrix remodeling, and epithelial-mesenchymal transition as well as an immunosuppressive tumor microenvironment (TME) enriched with tumor associated macrophages, tumor associated neutrophils, CD8 + T-cell exhaustion. Immunohistochemical staining of CD276 in 144 cases further validated its negative correlation with OS in glioma. Disulfidptosis has the potential to induce chronic inflammation and an immunosuppressive TME in glioblastoma.
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Affiliation(s)
- Yanjun Zhou
- Department of Radiotherapy and Oncology, Affiliated Hospital of Jiangnan University, Wuxi, 214000, Jiangsu, China.
| | - Xue Qin
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Qunchao Hu
- Department of Radiation Oncology, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, China, Shanghai
| | - Shaolei Qin
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Ran Xu
- Department of Neurosurgery, Affiliated Hospital of Jiangnan University, Wuxi, 214125, Jiangsu, China
| | - Ke Gu
- Department of Radiotherapy and Oncology, Affiliated Hospital of Jiangnan University, Wuxi, 214000, Jiangsu, China.
| | - Hua Lu
- Department of Neurosurgery, Affiliated Hospital of Jiangnan University, Wuxi, 214125, Jiangsu, China.
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Dai Y, Yu Y, Nie J, Gu K, Pei H. X-ray-downregulated nucleophosmin induces abnormal polarization by anchoring to G-actin. Life Sci Space Res (Amst) 2024; 40:81-88. [PMID: 38245352 DOI: 10.1016/j.lssr.2023.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/02/2023] [Accepted: 09/04/2023] [Indexed: 01/22/2024]
Abstract
Ionizing radiation poses significant risks to astronauts during deep space exploration. This study investigates the impact of radiation on nucleophosmin (NPM), a protein involved in DNA repair, cell cycle regulation, and proliferation. Using X-rays, a common space radiation, we found that radiation suppresses NPM expression. Knockdown of NPM increases DNA damage after irradiation, disrupts cell cycle distribution and enhances cellular radiosensitivity. Additionally, NPM interacts with globular actin (G-actin), affecting its translocation and centrosome binding during mitosis. These findings provide insights into the role of NPM in cellular processes in responding to radiation. This article enhances our comprehension of radiation-induced genomic instability and provides a foundational platform for prospective investigations within the realm of space radiation and its implications for cancer therapy.
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Affiliation(s)
- Yingchu Dai
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Suzhou Medical College of Soochow University, Suzhou, 215123, China.
| | - Yongduo Yu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Suzhou Medical College of Soochow University, Suzhou, 215123, China
| | - Jing Nie
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Suzhou Medical College of Soochow University, Suzhou, 215123, China; Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, China
| | - Ke Gu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Hailong Pei
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Suzhou Medical College of Soochow University, Suzhou, 215123, China; Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, China.
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Wu A, Li M, Chen Y, Zhang W, Li H, Chen J, Gu K, Wang X. Multienzyme Active Manganese Oxide Alleviates Acute Liver Injury by Mimicking Redox Regulatory System and Inhibiting Ferroptosis. Adv Healthc Mater 2024:e2302556. [PMID: 38238011 DOI: 10.1002/adhm.202302556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 01/11/2024] [Indexed: 01/28/2024]
Abstract
Drug-induced liver injury (DILI) is a severe condition characterized by impaired liver function and the excessive activation of ferroptosis. Unfortunately, there are limited options currently available for preventing or treating DILI. In this study, MnO2 nanoflowers (MnO2 Nfs) with remarkable capabilities of mimicking essential antioxidant enzymes, including catalase, superoxide dismutase (SOD), and glutathione peroxidase are successfully synthesized, and SOD is the dominant enzyme among them by density functional theory. Notably, MnO2 Nfs demonstrate high efficiency in effectively eliminating diverse reactive oxygen species (ROS) such as hydrogen peroxide (H2 O2 ), superoxide anion (O2 •- ), and hydroxyl radical (•OH). Through in vitro experiments, it is demonstrated that MnO2 Nfs significantly enhance the recovery of intracellular glutathione content, acting as a potent inhibitor of ferroptosis even in the presence of ferroptosis activators. Moreover, MnO2 Nfs exhibit excellent liver accumulation properties, providing robust protection against oxidative damage. Specifically, they attenuate acetaminophen-induced ferroptosis by inhibiting ferritinophagy and activating the P62-NRF2-GPX4 antioxidation signaling pathways. These findings highlight the remarkable ROS scavenging ability of MnO2 Nfs and hold great promise as an innovative and potential clinical therapy for DILI and other ROS-related liver diseases.
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Affiliation(s)
- Aimin Wu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, China
| | - Min Li
- College of Science, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Yinyin Chen
- College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Wei Zhang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Haoran Li
- College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Junzhou Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, China
| | - Ke Gu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xianxiang Wang
- College of Science, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
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Zhu J, Shen P, Xu Y, Zhang X, Chen Q, Gu K, Ji S, Yang B, Zhao Y. Ferroptosis: a new mechanism of traditional Chinese medicine for cancer treatment. Front Pharmacol 2024; 15:1290120. [PMID: 38292937 PMCID: PMC10824936 DOI: 10.3389/fphar.2024.1290120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/03/2024] [Indexed: 02/01/2024] Open
Abstract
Ferroptosis, distinct from apoptosis, is a novel cellular death pathway characterized by the build-up of lipid peroxidation and reactive oxygen species (ROS) derived from lipids within cells. Recent studies demonstrated the efficacy of ferroptosis inducers in targeting malignant cells, thereby establishing a promising avenue for combating cancer. Traditional Chinese medicine (TCM) has a long history of use and is widely used in cancer treatment. TCM takes a holistic approach, viewing the patient as a system and utilizing herbal formulas to address complex diseases such as cancer. Recent TCM studies have elucidated the molecular mechanisms underlying ferroptosis induction during cancer treatment. These studies have identified numerous plant metabolites and derivatives that target multiple pathways and molecular targets. TCM can induce ferroptosis in tumor cells through various regulatory mechanisms, such as amino acid, iron, and lipid metabolism pathways, which may provide novel therapeutic strategies for apoptosis-resistant cancer treatment. TCM also influence anticancer immunotherapy via ferroptosis. This review comprehensively elucidates the molecular mechanisms underlying ferroptosis, highlights the pivotal regulatory genes involved in orchestrating this process, evaluates the advancements made in TCM research pertaining to ferroptosis, and provides theoretical insights into the induction of ferroptosis in tumors using botanical drugs.
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Affiliation(s)
- Jiahao Zhu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
- Wuxi Clinical Cancer Center, Wuxi, Jiangsu, China
| | - Peipei Shen
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
- Wuxi Clinical Cancer Center, Wuxi, Jiangsu, China
| | - Yu Xu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
- Wuxi Clinical Cancer Center, Wuxi, Jiangsu, China
| | - Xiaojun Zhang
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
- Wuxi Clinical Cancer Center, Wuxi, Jiangsu, China
| | - Qingqing Chen
- Department of Radiotherapy and Oncology, The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, Jiangsu, China
| | - Ke Gu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
- Wuxi Clinical Cancer Center, Wuxi, Jiangsu, China
| | - Shengjun Ji
- Department of Radiotherapy and Oncology, The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, Jiangsu, China
| | - Bo Yang
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
- Wuxi Clinical Cancer Center, Wuxi, Jiangsu, China
| | - Yutian Zhao
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
- Wuxi Clinical Cancer Center, Wuxi, Jiangsu, China
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Wu G, Qin S, Gu K, Zhou Y. PYCR2, induced by c-Myc, promotes the invasiveness and metastasis of breast cancer by activating AKT signalling pathway. Int J Biochem Cell Biol 2024; 166:106506. [PMID: 38101533 DOI: 10.1016/j.biocel.2023.106506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/17/2023] [Accepted: 12/11/2023] [Indexed: 12/17/2023]
Abstract
BACKGROUND Pyrroline-5-carboxylate reductase 2 (PYCR2) expression is aberrantly upregulated in colon cancer. However, the functions and underlying mechanisms of PYCR2 in breast cancer remain elusive. The primary objective of the present study was to elucidate the function of PYCR2 in breast cancer and investigate whether PYCR2 may be transcriptionally regulated by c-Myc to activate the AKT signaling pathway. METHODS Immunohistochemical analysis was performed to examine the expression of PYCR2 in breast cancer and adjacent non-cancerous tissues. Western blot and RT-qPCR were utilized to detect PYCR2 expression in breast cancer cells. Cellular functionalities were evaluated through Transwell assays in vitro and lung metastasis formation assays in vivo. Moreover, the impact of PYCR2 on the activation of AKT signaling was determined through western blot and immunohistochemistry analysis. The transcriptional regulation of PYCR2 expression by c-Myc was evaluated via both western blot analysis and luciferase gene reporter assay. RESULTS PYCR2 overexpression was noted in breast cancer. Silencing PYCR2 expression attenuated the invasive and metastatic abilities of breast cancer cells. Furthermore, the activation of the AKT signaling pathway is indispensable for the promotion of invasion and metastasis mediated by PYCR2. Lastly, the binding of c-Myc to the promoter sequence of PYCR2 resulted in the upregulation of PYCR2 transcription. CONCLUSION Taken together, these results indicate that PYCR2 is transcriptionally regulated by c-Myc and promotes invasion and metastasis in breast cancer through the activation of the AKT pathway.
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Affiliation(s)
- Gang Wu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi 214062, China.
| | | | - Ke Gu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi 214062, China.
| | - Yanjun Zhou
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi 214062, China.
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Wang G, Jiang K, Gu K, Liu H, Liu H, Zhang W. Coarse- and Fine-Grained Fusion Hierarchical Network for Hole Filling in View Synthesis. IEEE Trans Image Process 2023; 33:322-337. [PMID: 38100338 DOI: 10.1109/tip.2023.3341303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
Depth image-based rendering (DIBR) techniques play an essential role in free-viewpoint videos (FVVs), which generate the virtual views from a reference 2D texture video and its associated depth information. However, the background regions occluded by the foreground in the reference view will be exposed in the synthesized view, resulting in obvious irregular holes in the synthesized view. To this end, this paper proposes a novel coarse and fine-grained fusion hierarchical network (CFFHNet) for hole filling, which fills the irregular holes produced by view synthesis using the spatial contextual correlations between the visible and hole regions. CFFHNet adopts recurrent calculation to learn the spatial contextual correlation, while the hierarchical structure and attention mechanism are introduced to guide the fine-grained fusion of cross-scale contextual features. To promote texture generation while maintaining fidelity, we equip CFFHNet with a two-stage framework involving an inference sub-network to generate the coarse synthetic result and a refinement sub-network for refinement. Meanwhile, to make the learned hole-filling model better adaptable and robust to the "foreground penetration" distortion, we trained CFFHNet by generating a batch of training samples by adding irregular holes to the foreground and background connection regions of high-quality images. Extensive experiments show the superiority of our CFFHNet over the current state-of-the-art DIBR methods. The source code will be available at https://github.com/wgc-vsfm/view-synthesis-CFFHNet.
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Gu K, Wu A, Yu B, Zhang T, Lai X, Chen J, Yan H, Zheng P, Luo Y, Luo J, Pu J, Wang Q, Wang H, Chen D. Iron overload induces colitis by modulating ferroptosis and interfering gut microbiota in mice. Sci Total Environ 2023; 905:167043. [PMID: 37717771 DOI: 10.1016/j.scitotenv.2023.167043] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/19/2023]
Abstract
BACKGROUND Iron plays a pivotal role in various physiological processes, including intestinal inflammation, ferroptosis, and the modulation of the gut microbiome. However, the way these factors interact with each other is unclear. METHODS Mice models were fed with low, normal and high iron diets to assess their impacts on colitis, ferroptosis and gut microbiota. Untargeted fecal metabolomics analysis, 16S rRNA sequencing, histopathology analysis, real-time quantitative PCR and western blot were performed to analyze the differences in the intestinal inflammatory response and understanding its regulatory mechanisms between low, normal and high iron groups. RESULTS The iron overload changed the serum iron, colon iron and fecal iron. In addition, the iron overload induced the colitis, induced the ferroptosis and altered the microbiome composition in the fecal of mice. By using untargeted fecal metabolomics analysis to screen of metabolites in the fecal, we found that different metabolomics profiles in the fecal samples between iron deficiency, normal iron and iron overload groups. The correlation analysis showed that both of iron deficiency and overload were closely related to Dubosiella. The relationship between microbial communities (e.g., Akkermansia, Alistipes, and Dubosiella) and colitis-related parameters was highly significant. Additionally, Alistipes and Bacteroides microbial communities displayed a close association with ferroptosis-related parameters. Iron overload reduced the concentration of metabolites, which exert the anti-inflammatory effects (e.g., (+)-.alpha.-tocopherol) in mice. The nucleotide metabolism, enzyme metabolism and metabolic diseases were decreased and the lipid metabolism was increased in iron deficiency and iron overload groups compared with normal iron group. CONCLUSION Iron overload exacerbated colitis in mice by modulating ferroptosis and perturbing the gut microbiota. Iron overload-induced ferroptosis was associated with NRF2/GPX-4 signaling pathway. Specific microbial taxa and their associated metabolites were closely intertwined with both colitis and ferroptosis markers.
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Affiliation(s)
- Ke Gu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Aimin Wu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Bing Yu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Tingting Zhang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Xin Lai
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Junzhou Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Hui Yan
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Ping Zheng
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Yuheng Luo
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Junqiu Luo
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Junning Pu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Quyuan Wang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Huifen Wang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Daiwen Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China.
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Zhou Y, Qin S, Zhu Y, Xu P, Gu K. Inverse association between isoflavones and prediabetes risk: evidence from NHANES 2007-2010 and 2017-2018. Front Nutr 2023; 10:1288416. [PMID: 38115881 PMCID: PMC10728643 DOI: 10.3389/fnut.2023.1288416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 11/13/2023] [Indexed: 12/21/2023] Open
Abstract
Introduction Prediabetes is a metabolic condition characterized by blood glucose levels that are higher than normal but do not meet the threshold for a diabetes diagnosis. Individuals with prediabetes are at an increased risk of developing type 2 diabetes and associated complications. However, limited epidemiological studies have investigated the association between flavonoids from plant-based diets and the risk of prediabetes, and the existing evidence from these studies is inconsistent. Methods Therefore, we utilized data from 19,021 participants (mean age: 32.03 years) in the National Health and Nutrition Examination Survey (NHANES) conducted during 2007-2010 and 2017-2018 to investigate the potential association between dietary flavonoid intake and prediabetes risk by weighted logistic regression analysis. Furthermore, the data from 3,706 participants (mean age: 35.98 years) from NHANES 2007-2010 were used to assess the correlation between concentrations of isoflavones and their metabolites in urine and prediabetes risk by weighted logistic regression analysis. Results Our findings revealed an inverse association between the intake of glycitein (OR: 0.88; 95% CI: 0.82-0.96; p = 0.003), genistein (OR: 0.98; 95% CI: 0.97-0.99; p = 0.004), daidzein (OR: 0.98; 95% CI: 0.96-0.99; p = 0.009), and total isoflavones (OR: 0.99; 95% CI: 0.98-1.00; p = 0.005) with the risk of prediabetes. Moreover, we observed an inverse association between the concentration of daidzein in urine (OR: 0.84; 95% CI: 0.73-0.96; p = 0.012) and the concentration of genistein in urine (OR:0.83; 95% CI: 0.75-0.93; p = 0.003) with the risk of prediabetes using weighted logistic regression. Conclusion In conclusion, our findings suggest a potential protective effect of isoflavones against the development of prediabetes.
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Affiliation(s)
- Yanjun Zhou
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Shaolei Qin
- Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu, China
| | - Yan Zhu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Peng Xu
- Population Health Sciences, German Centre for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Ke Gu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
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Gu K, Wang F, Sun W, Liu G, Jia G, Zhao H, Chen X, Wu C, Tian G, Cai J, Zhang R, Wang J. Tryptophan alleviates lipopolysaccharide-induced liver injury and inflammation by modulating necroptosis and pyroptosis signaling pathways in piglets. Anim Biotechnol 2023; 34:4069-4080. [PMID: 37688392 DOI: 10.1080/10495398.2023.2255064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/10/2023]
Abstract
The liver plays crucial roles in material metabolism and immune response. Bacterial endotoxin can cause various liver diseases, thereby causing significant economic losses to pig industry. Tryptophan is an essential amino acid in piglets. However, whether tryptophan can alleviate liver injury and inflammation by regulating necroptosis and pyroptosis has not been clarified. This study aimed to investigate whether dietary tryptophan can alleviate lipopolysaccharide (LPS)-induced liver injury in weaned piglets. 18 weaned piglets were randomly distributed to three treatments, each with 6 replicates: (1) control; (2) LPS-challenged control; (3) LPS + 0.2% tryptophan. After feeding with control or 0.2% tryptophan-supplemented diets for 35 d, pigs were intraperitoneally injected with saline or LPS (100 mg/kg body weight). At 4 h post-injection, blood samples and liver were collected. Results indicated that tryptophan reduced alanine aminotransferase, aspartate aminotransferase, decreased the mRNA expression and protein expression of 70-kDa heat shock proteins. Moreover, tryptophan increased the mRNA expression and protein expression of claudin-1, occludin and zonula occludens and decreased hydrogen peroxide and malondialdehyde contents, and increased catalase, glutathione peroxidase and total superoxide dismutase activities and proinflammatory cytokine levels in the liver. Meanwhile, tryptophan inhibited pyroptosis-related and necroptosis-related protein expression in liver. Collectively, tryptophan could relieve liver damage, increased the antioxidant capacity and reduced inflammation by inhibiting pyroptosis and necroptosis signaling pathways.
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Affiliation(s)
- Ke Gu
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, China
| | - Fang Wang
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, China
| | - Weixiao Sun
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, China
| | - Guangmang Liu
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, China
| | - Gang Jia
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, China
| | - Hua Zhao
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, China
| | - Xiaoling Chen
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, China
| | - Caimei Wu
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, China
| | - Gang Tian
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, China
| | - Jingyi Cai
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, China
| | - Ruinan Zhang
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, China
| | - Jing Wang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
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Tao J, Liu G, Gu K, Jia G, Zhao H, Chen X, Tian G, Cai J, Wang J. Tryptophan alleviates intestinal damage through regulating necroptosis and TLR4/NOD signaling pathways in pigs after lipopolysaccharide challenge. Anim Biotechnol 2023; 34:4938-4946. [PMID: 37199152 DOI: 10.1080/10495398.2023.2213278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
This study aimed to test the hypothesis that necroptosis, toll-like receptor 4 (TLR4)/nucleotide-binding oligomerization domain (NOD) signaling pathway in the jejunum of lipopolysaccharide (LPS)-challenged piglets are involved in the alleviation of intestinal injury and inflammation by tryptophan supplementation. Tryptophan supplementation has improved intestinal morphology. Also, tryptophan has been found to increase the mRNA and protein expression of tight junction proteins and decrease the expression of pro-inflammatory cytokines. Dietary tryptophan decreased the mRNA expression of heat shock protein 70, TLR4, NOD1, NOD2, myeloid differentiation primary response gene 88, interleukin 1 receptor-associated kinase 1, TNF receptor-associated factor 6, receptor-interacting serine/threonine-protein kinase 2-like, nuclear factor-kappaB transcription factor P65 in the jejunum of piglets. Tryptophan alleviated LPS-induced necroptosis and decreased the mRNA expression of mixed lineage kinase domain-like, receptor-interacting serine/threonine kinase 1, receptor-interacting serine/threonine-protein kinase 3-like, Fas (TNFRSF6)-associated via death domain, PGAM family member 5. Collectively, our results suggest that tryptophan supplementation helps in the attenuation of intestinal injury and inflammation by alleviating necroptosis and TLR4/NOD in lipopolysaccharide-challenged pigs.
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Affiliation(s)
- Jingyuan Tao
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Guangmang Liu
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Ke Gu
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Gang Jia
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Hua Zhao
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xiaoling Chen
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Gang Tian
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Jingyi Cai
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Jing Wang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, China
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12
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Liu L, Gu K, Hua D. HDAC1 suppresses radiotherapy sensitivity in cervical cancer via regulating HIF-1α/VEGF signaling pathway. Cell Mol Biol (Noisy-le-grand) 2023; 69:132-140. [PMID: 38015530 DOI: 10.14715/cmb/2023.69.11.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Indexed: 11/29/2023]
Abstract
Cervical cancer (CC) is the fourth most common cancer amongst females worldwide. Histone deacetylase (HDAC) 1 plays a vital role in several tumors. Nevertheless, its potential and mechanism in radiotherapy sensitivity underlying CC remains obscure. Hence, the objective of this research was to probe the potential of HDAC1 in CC radiotherapy sensitivity and its mechanism of action. The expression HDACs and survival analysis of HDAC1 were investigated based on the GEPIA database. Immunohistochemical staining was implemented to detect HDAC1 and Ki-67 expression in tumor tissues. RT-qPCR and Western blot were conducted to assess HDAC1, HIF-1α, VEGFA, along with VEGFR expressions in CC cells and tumor tissues. Cell viability, apoptosis, invasion, migration, along with cell cycle were analyzed by functional assays. Tumor-bearing nude mice model was established, and the tumor weight and volume were determined. HDAC1 was high-expressed in the tumor tissue and CC cells. In vitro, overexpression of HDAC1 suppressed radiotherapy sensitivity in C33A cells, while knockdown of HDAC1 promoted radiotherapy sensitivity in SiHa cells. In vivo, we found that HDAC1 silence hindered tumor growth and cell proliferation and promoted tumor cell apoptosis in nude mice after radiotherapy. In addition, we found that HDAC1 impacted radiotherapy sensitivity by modulating the HIF-1α/VEGF signaling pathway. In conclusion, HDAC1 suppressed the radiotherapy sensitivity of CC via regulating HIF-1α/VEGF signaling pathway, suggesting that HDAC1 may act as a crucial participant in regulating CC radiosensitivity, which may provide a novel method for treating CC.
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Affiliation(s)
- Li Liu
- Department of Radiation Oncology, The Affiliated Hospital of Jiangnan University, Wuxi 214000, Jiangsu, China.
| | - Ke Gu
- Department of Radiation Oncology, The Affiliated Hospital of Jiangnan University, Wuxi 214000, Jiangsu, China.
| | - Dong Hua
- Department of Oncology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, Jiangsu, China.
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13
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Li HL, Fang J, Wu CX, Gao LF, Tan YT, Gu K, Shi Y, Xiang YB. [Pre- and post-diagnosis body mass index in association with colorectal cancer death in a prospective cohort study]. Zhonghua Zhong Liu Za Zhi 2023; 45:657-665. [PMID: 37580270 DOI: 10.3760/cma.j.cn112152-20220824-00576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Objective: To evaluate the association between pre-and post-diagnosis body mass index (BMI) and risk of colorectal cancer (CRC) death. Methods: The cohort consisted of 3, 057 CRC patients from Shanghai who were diagnosed from Jan. 1, 2009 to Dec. 31, 2011 and aged from 20 to 74 years. The pre- and post-diagnosis BMI and clinical and lifestyle factors were collected at baseline. Death information was collected using record linkage with the Shanghai Cancer Registry and telephone confirmation during follow-up by the end of 2019. The Cox proportional regression model was used to estimate HR with 95% CI. Results: Analysis by multivariable Cox model showed no association between pre-diagnosis BMI and death risk in both male and female patients. Male patients with a post-diagnosis underweight BMI had an elevated risk of death compared to those in normal weight (HR=1.69, 95% CI: 1.21-2.37), especially in early stage cases. Overweight patients (HR=0.74, 95% CI: 0.61-0.89) and patients with obesity class Ⅰ (HR=0.63, 95% CI: 0.45-0.89)had better survival with decreased risks of death, especially in advanced stage cases. The decreased death risk in patients with obesity class Ⅱ was not significant (HR=0.57, 95% CI: 0.24-1.39). The P(trend) value for decreased risk of death with increased BMI in female patients was statistically significant (P<0.001), and the overweight and obesity class Ⅰ categories had better survival in advanced stage(HR(overweight)=0.62, 95% CI: 0.42-0.93; HR(obesity class Ⅰ)=0.39, 95% CI: 0.16-0.98). Both male and female patients with post-diagnosis BMI loss >2.0 kg/m(2) had an increased death risk when compared with those with stable BMI (change≤1.0 kg/m(2)) between pre- and post-diagnosis. BMI gain after diagnosis did not change death risk. Conclusions: Post-diagnosis BMI in the overweight or obesity class Ⅰ groups might be conducive to prolonging male CRC patients' survival, while underweight might result in poor prognosis. Keeping weight and avoiding excessive weight loss should be suggested for all CRC patients after diagnosis.
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Affiliation(s)
- H L Li
- State Key Laboratory of Oncogenes and Related Genes and Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China
| | - J Fang
- State Key Laboratory of Oncogenes and Related Genes and Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China
| | - C X Wu
- Department of Cancer Control and Prevention, Division of Noncommunicable Diseases and Injury, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - L F Gao
- State Key Laboratory of Oncogenes and Related Genes and Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China
| | - Y T Tan
- State Key Laboratory of Oncogenes and Related Genes and Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China
| | - K Gu
- Department of Cancer Control and Prevention, Division of Noncommunicable Diseases and Injury, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Y Shi
- Division of Noncommunicable Diseases and Injury, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Y B Xiang
- State Key Laboratory of Oncogenes and Related Genes and Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China
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Zhou Y, Xu P, Qin S, Zhu Y, Gu K. The associations between dietary flavonoid intake and the prevalence of diabetes mellitus: Data from the National Health and Nutrition Examination Survey 2007-2010 and 2017-2018. Front Endocrinol (Lausanne) 2023; 14:1250410. [PMID: 37664856 PMCID: PMC10474301 DOI: 10.3389/fendo.2023.1250410] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 08/03/2023] [Indexed: 09/05/2023] Open
Abstract
Background Diabetes mellitus (DM) is a prominent health concern worldwide, leading to the high incidence of disability and mortality and bringing in heavy healthcare and social burden. Plant-based diets are reported associated with a reduction of DM risk. Plant-based diets are rich in flavonoids, which possess properties such as scavenging free radicals and exerting both anti-inflammatory and antioxidant effects. Purpose However, whether dietary flavonoids are associated with the prevalence of DM remains controversial. The potential reasons for contradictory epidemiological outcomes on the association between dietary flavonoids and DM prevalence have not been determined. Methods To address these limitations, we employed data from 22,481 participants in the National Health and Nutrition Examination Survey to explore the association between the intake of flavonoids and DM prevalence by weighted Logistic regression and weighted restricted cubic splines. Results We found that the prevalence of DM was inversely associated with the intake of total flavonoids in the second quartile [Odds Ratio (OR) 0.78 95% confidence interval (CI) (0.63, 0.97), p = 0.028], in the third quartile [0.76 (0.60, 0.97), p = 0.031], and in the fourth quartile [0.80 (0.65, 0.97), p = 0.027]. However, the p for trend was not significant [0.94 (0.88, 1.01), p = 0.096]. Moreover, the association between DM prevalence and the intake of total flavonoids was significantly influenced by race (p for interaction = 0.006). In Mexican Americans, there was a significant positive association between DM prevalence and total flavonoid intake within the third quartile [1.04 (1.02, 1.07), p = 0.003]. Total flavan-3-ol and subtotal catechin intake exhibited a non-linear U-shaped association with DM prevalence (p for non-linearity < 0.0001 and p for non-linearity < 0.0001, respectively). Compared to the first quartile of corresponding intakes, consumption within the third quartile of subtotal catechins [0.70 (0.55, 0.89), p = 0.005] and total flavan-3-ols [0.65 (0.50, 0.84), p = 0.002] was associated with a lower prevalence of DM. Conclusion Taken together, our study may provide preliminary research evidence for personalized improvement of dietary habits to reduce the prevalence of diabetes.
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Affiliation(s)
- Yanjun Zhou
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Peng Xu
- Population Health Sciences, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Shaolei Qin
- Wuxi Medical College, Jiangnan University, Wuxi, Jiangsu, China
| | - Yan Zhu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Ke Gu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
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15
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Lu S, Qin S, Zhou Z, Chen J, Gu K, Sun P, Pan Y, Yu G, Ma K, Shi J, Sun Y, Yang L, Chen P, Liu A, He J. Bevacizumab biosimilar candidate TAB008 compared to Avastin ® in patients with locally advanced, metastatic EGFR wild-type non-squamous non-small cell lung cancer: a randomized, double-blind, multicenter study. J Cancer Res Clin Oncol 2023; 149:5907-5914. [PMID: 36595042 DOI: 10.1007/s00432-022-04563-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 12/26/2022] [Indexed: 01/04/2023]
Abstract
BACKGROUND Bevacizumab (Avastin®) is a monoclonal antibody targeting the vascular endothelial growth factor (VEGF). Used alone or in combination with chemotherapy and/or immunotherapy, Avastin® has shown promising efficacy in many cancers. This study compared the efficacy and safety of TAB008 with Avastin® sourced from the EU (bevacizumab-EU), in patients with non-squamous non-small cell lung cancer (nsNSCLC). METHOD In this randomized, double-blind, multicenter, phase III similarity study, treatment naïve for metastatic lung cancer., EGFR wild-type, locally advanced, metastatic, or recurrent non-squamous, non-small cell, lung cancer (nsNSCLC) patients were enrolled and randomized (1:1) into TAB008 or Avastin® groups. Patients received TAB008 or Avastin® 15 mg/kg intravenously plus paclitaxel/carboplatin for 4-6 cycles followed by TAB008 or Avastin® 7.5 mg/kg until disease progression, unacceptable toxicity or death. The primary endpoint compared the objective response rate (ORR) within 6 cycles as read by an independent radiological review committee (IRRC). Secondary endpoints compared disease control rate (DCR) Within 6 cycles, duration of response (DoR), progression-free survival (PFS), a year overall survival rate (OSR), overall survival (OS), safety, immunogenicity, and steady-state pharmacokinetics. RESULTS A total of 549 nsNSCLC patients were enrolled (277 in TAB008 group and 272 in Avastin® group). In the full analysis set, ORRs were 55.957% for TAB008 and 55.720% for Avastin®, and the ORR ratio was 1 (90% CI 0.89-1.14), well within the predefined equivalence margin of 0.75-1.33. No significant differences were found in DCR within 6 cycles (95.703% vs 95.367%, p = 0.8536), DoR (8.17 vs 7.3 months, p = 0.3526), PFS (9.10 vs. 7.97 months, p = 0.9457), 1 year overall survival rate (66.2% vs 68%, p = 0.6793), or OS (20.4 vs 17.6 months, p = 0.6549). Serious adverse events (SAEs) occurred in 37.55% (104/277) of patients in the TAB008 group and 34.32% (93/271) in the Avastin® group. Anti-drug antibodies were reported in 3 of 277 (1.08%) TAB008 patients, and 5 of 271 (1.85%) Avastin® patients, neutralizing antibody (Nab) was positive in 1 patient on Avastin®, which became negative upon follow-up. The steady-state trough concentrations (Cssmin) were 106.13 μg/mL in TAB008 group and 96.03 μg/mL in Avastin® groups, with the treatment group ratio of LS geometric means fully contained within the bioequivalence limits of 80.00-125.00% (90% CI was 101.74-120.05%). CONCLUSIONS TAB008 is similar to Avastin® in terms of efficacy, safety, and pharmacokinetic parameters, with comparable immunogenicity. TRIAL REGISTRATION ClinicalTrials.gov number; NCT05427305.
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Affiliation(s)
- S Lu
- Lung Cancer Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - S Qin
- Cancer Center, Nanjing Jinling Hospital, Nanjing, China.
| | - Z Zhou
- Lung Cancer Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - J Chen
- Oncology, Hunan Cancer Hospital, Changsha, China
| | - K Gu
- Oncology, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - P Sun
- Oncology, Yantai Yuhuangding Hospital, Yantai, China
| | - Y Pan
- Oncology, Anhui Provincial Hospital, Hefei, China
| | - G Yu
- Oncology, Weifang People's Hospital, Weifang, China
| | - K Ma
- Oncology, Jilin University First Hospital, Jilin, China
| | - J Shi
- Oncology, Linyi Cancer Hospital, Linyi, China
| | - Y Sun
- Oncology, Jinan Central Hospital, Jinan, China
| | - L Yang
- Cancer Center, Nanjing Jinling Hospital, Nanjing, China
| | - P Chen
- Oncology, Yancheng First People's Hospital, Yancheng, China
| | - A Liu
- Oncology, Nanchang University Second Affiliated Hospital, Nanchang, China
| | - J He
- Statistics, The Second Military Medical University, Shanghai, China
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16
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Liu Y, Zeng Y, Li Y, Sun P, Zhu J, Liu X, Gu K. A capacitance sensing method with trans-impedance based readout circuit and adaptive filtering for micro-gyro. Rev Sci Instrum 2023; 94:075002. [PMID: 37428024 DOI: 10.1063/5.0151655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 06/23/2023] [Indexed: 07/11/2023]
Abstract
Trans-impedance amplifier (TIA) based capacitance-voltage (C-V) readout circuit is an attractive choice for micro-machined gyroscope for its simplicity and superior performance. In this work, the noise and the C-V gain characteristics of the TIA circuit are analyzed in detail. Then, a TIA based readout circuit with a C-V gain of about 286 dB is designed, and a series of experiments are conducted to test the performance of the circuit. Both the analysis and test results show that T-network TIA should be avoided as far as possible for its poor noise performance. All results also show that there is a signal-to-noise ratio (SNR) limit for the TIA based readout circuit, and the SNR can only be further improved by filtering. Hence, an adaptive finite impulse response filter is designed to further improve the SNR of the sensed signal. For a gyroscope with a peak-to-peak variable capacitance of about 200 aF, a SNR of 22.8 dB can be achieved by the designed circuit and a SNR of 47 dB can be obtained by further adaptive filtering. Finally, the solution presented in this paper achieves a capacitive sensing resolution of 0.9 aF.
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Affiliation(s)
- Yinyu Liu
- Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China
| | - Youjun Zeng
- Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China
| | - Yaochang Li
- Microsystem and Terahertz Research Center, China Academy of Engineering Physics, Chengdu 610200, China
| | - Peng Sun
- Microsystem and Terahertz Research Center, China Academy of Engineering Physics, Chengdu 610200, China
| | - Jiangang Zhu
- Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China
| | - Xin Liu
- Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China
| | - Ke Gu
- Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China
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17
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Abstract
Existing no-reference (NR) image quality assessment (IQA) metrics are still not convincing for evaluating the quality of the camera-captured images. Toward tackling this issue, we, in this article, establish a novel NR quality metric for quantifying the quality of the camera-captured images reliably. Since the image quality is hierarchically perceived from the low-level preliminary visual perception to the high-level semantic comprehension in the human brain, in our proposed metric, we characterize the image quality by exploiting both the low-level image properties and the high-level semantics of the image. Specifically, we extract a series of low-level features to characterize the fundamental image properties, including the brightness, saturation, contrast, noiseness, sharpness, and naturalness, which are highly indicative of the camera-captured image quality. Correspondingly, the high-level features are designed to characterize the semantics of the image. The low-level and high-level perceptual features play complementary roles in measuring the image quality. To infer the image quality, we employ the support vector regression (SVR) to map all the informative features to a single quality score. Thorough tests conducted on two standard camera-captured image databases demonstrate the effectiveness of the proposed quality metric in assessing the image quality and its superiority over the state-of-the-art NR quality metrics. The source code of the proposed metric for camera-captured images is released at https://github.com/YT2015?tab=repositories.
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18
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Cui C, Zhou XK, Zhu Y, Shen YM, Chen LD, Ju WZ, Chen HW, Gu K, Li MF, Pan YB, Chen ML. [Repeated stellate ganglion blockade for the treatment of ventricular tachycardia storm in patients with nonischemic cardiomyopathy: a new therapeutic option for patients with malignant arrhythmias]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:521-525. [PMID: 37198124 DOI: 10.3760/cma.j.cn112148-20220525-00411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Objectives: This study sought to describe our institutional experience of repeated percutaneous stellate ganglion blockade (R-SGB) as a treatment option for drug-refractory electrical storm in patients with nonischemic cardiomyopathy (NICM). Methods: This prospective observational study included 8 consecutive NICM patients who had drug-refractory electrical storm and underwent R-SGB between June 1, 2021 and January 31, 2022. Lidocaine (5 ml, 1%) was injected in the vicinity of the left stellate ganglion under the guidance of ultrasound, once per day for 7 days. Data including clinical characteristics, immediate and long-term outcomes, and procedure related complications were collected. Results: The mean age was (51.5±13.6) years. All patients were male. 5 patients were diagnosed as dilated cardiomyopathy, 2 patients as arrhythmogenic right ventricular cardiomyopathy and 1 patient as hypertrophic cardiomyopathy. The left ventricular ejection fraction was 37.8%±6.6%. After the treatment of R-SGB, 6 (75%) patients were free of electrical storm. 24 hours Holter monitoring showed significant reduction in ventricular tachycardia (VT) episodes from 43.0 (13.3, 276.3) to 1.0 (0.3, 34.0) on the first day following R-SGB (P<0.05) and 0.5 (0.0, 19.3) after whole R-SGB process (P<0.05). There were no procedure-related major complications. The mean follow-up was (4.8±1.1) months, and the median time of recurrent VT was 2 months. Conclusion: Minimally invasive R-SGB is a safe and effective method to treat electrical storm in patients with NICM.
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Affiliation(s)
- C Cui
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - X K Zhou
- Department of Anaesthesiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Y Zhu
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Y M Shen
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - L D Chen
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - W Z Ju
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - H W Chen
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - K Gu
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - M F Li
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Y B Pan
- Department of Anaesthesiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - M L Chen
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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Yang C, Wu A, Tan L, Tang D, Chen W, Lai X, Gu K, Chen J, Chen D, Tang Q. Epigallocatechin-3-Gallate Alleviates Liver Oxidative Damage Caused by Iron Overload in Mice through Inhibiting Ferroptosis. Nutrients 2023; 15:nu15081993. [PMID: 37111212 PMCID: PMC10145929 DOI: 10.3390/nu15081993] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/29/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Ferroptosis, a form of regulated cell death, has been widely explored as a novel target for the treatment of diseases. The failure of the antioxidant system can induce ferroptosis. Epigallocatechin-3-Gallate (EGCG) is a natural antioxidant in tea; however, whether EGCG can regulate ferroptosis in the treatment of liver oxidative damage, as well as the exact molecular mechanism, is unknown. Here, we discovered that iron overload disturbed iron homeostasis in mice, leading to oxidative stress and damage in the liver by activating ferroptosis. However, EGCG supplementation alleviated the liver oxidative damage caused by iron overload by inhibiting ferroptosis. EGCG addition increased NRF2 and GPX4 expression and elevated antioxidant capacity in iron overload mice. EGCG administration attenuates iron metabolism disorders by upregulating FTH/L expression. Through these two mechanisms, EGCG can effectively inhibit iron overload-induced ferroptosis. Taken together, these findings suggest that EGCG is a potential ferroptosis suppressor, and may be a promising therapeutic agent for iron overload-induced liver disease.
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Affiliation(s)
- Chunjing Yang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Tea Refining and Innovation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Aimin Wu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Liqiang Tan
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Tea Refining and Innovation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Dandan Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Tea Refining and Innovation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Wei Chen
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Tea Refining and Innovation Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Xin Lai
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Ke Gu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Junzhou Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Daiwen Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China
| | - Qian Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
- Tea Refining and Innovation Key Laboratory of Sichuan Province, Chengdu 611130, China
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20
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Liu G, Gu K, Liu X, Jia G, Zhao H, Chen X, Wang J. Dietary glutamate enhances intestinal immunity by modulating microbiota and Th17/Treg balance-related immune signaling in piglets after lipopolysaccharide challenge. Food Res Int 2023; 166:112597. [PMID: 36914323 DOI: 10.1016/j.foodres.2023.112597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/03/2023] [Accepted: 02/14/2023] [Indexed: 02/19/2023]
Abstract
The purpose of this study was to explore the effects of glutamate on piglet growth performance and intestinal immunity function, and to further elucidate its mechanism. In a 2 × 2 factorial design involving immunological challenge (lipopolysaccharide (LPS) or saline) and diet (with or without glutamate), twenty-four piglets were randomly assigned to four groups, each with 6 replicates. Piglets were fed with a basal or glutamate diet for 21 d before being injected intraperitoneally with LPS or saline. Piglet's intestinal samples were collected 4 h after injection. Results showed that glutamate increased daily feed intake, average daily gain, villus length, villus area, and villus length to crypt depth ratio (V/C), and decreased the crypt depth (P < 0.05). Furthermore, glutamate increased the mRNA expression of forkhead box P3 (FOXP3), a signal transducer and activator of transcription 5 (STAT5) and transforming growth factor beta, while decreasing the mRNA expression of RAR-related orphan receptor c and STAT3. Glutamate increased interleukin-10 (IL-10) mRNA expression while decreasing the mRNA expression of IL-1β, IL-6, IL-8, IL-17, IL-21, and tumor necrosis factor-α. At the phylum level, glutamate increased the Actinobacteriota abundance and Firmicutes-to-Bacteroidetes ratio while decreasing Firmicutes abundance. At the genus level, glutamate improved the abundance of beneficial bacteria (e.g., Lactobacillus, Prevotellaceae-NK3B31-group, and UCG-005). Furthermore, glutamate increased the concentrations of short-chain fatty acids (SCFAs). Correlation analysis revealed that the intestinal microbiota is closely related to Th17/Treg balance-related index and SCFAs. Collectively, glutamate can improve piglet growth performance and intestinal immunity by modulating gut microbiota and Th17/Treg balance-related signaling pathways.
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Affiliation(s)
- Guangmang Liu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, Sichuan, China; Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Chengdu 611130, Sichuan, China.
| | - Ke Gu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, Sichuan, China; Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Chengdu 611130, Sichuan, China
| | - Xinlian Liu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, Sichuan, China; Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Chengdu 611130, Sichuan, China
| | - Gang Jia
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, Sichuan, China; Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Chengdu 611130, Sichuan, China
| | - Hua Zhao
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, Sichuan, China; Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Chengdu 611130, Sichuan, China
| | - Xiaoling Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, Sichuan, China; Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Chengdu 611130, Sichuan, China
| | - Jing Wang
- Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
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21
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Zhou F, Gu K, Zhou Y. Flavonoid intake is associated with lower all-cause and disease-specific mortality: The National Health and Nutrition Examination Survey 2007-2010 and 2017-2018. Front Nutr 2023; 10:1046998. [PMID: 36866051 PMCID: PMC9971007 DOI: 10.3389/fnut.2023.1046998] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 01/20/2023] [Indexed: 02/16/2023] Open
Abstract
Adequate intake of flavonoids may influence mortality, particularly of heart and cerebrovascular diseases. However, the importance of each flavonoid and its subclasses in preventing all-cause and disease-specific mortalities remain unclear. In addition, it is unknown which population groups would benefit from high flavonoid intake. Therefore, personalized mortality risk based on flavonoid intake needs to be estimated. The association between flavonoid intake and mortality among 14,029 participants in the National Health and Nutrition Examination Survey was examined using Cox proportional hazards analysis. A prognostic risk score and nomogram linking flavonoid intake and mortality were constructed. During a median follow-up of 117 months (9.75 years), 1,603 incident deaths were confirmed. Total flavonol intake was associated with a significantly reduced all-cause mortality [multivariable adjusted hazard ratio [HR] (95% confidence interval [CI]), 0.87 (0.81, 0.94), p for trend <0.001], especially in participants aged 50 years and older and former smokers. Similarly, total anthocyanidin intake was inversely associated with all-cause mortality [0.91 (0.84, 0.99), p for trend = 0.03], which was most significant in non-alcoholics. The intake of isoflavones was negatively associated with all-cause mortality [0.81 (0.70, 0.94), p = 0.01]. Moreover, a risk score was constructed based on survival-related flavonoid intake. The constructed nomogram accurately predicted the all-cause mortality of individuals based on flavonoid intake. Taken together, our results can be used to improve personalized nutrition.
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Affiliation(s)
- Fengying Zhou
- Department of Breast Diseases, Wuxi Meternal and Child Health Hospital, Women’s Hospital of Jiangnan University, Jiangnan University, Wuxi, Jiangsu, China
| | - Ke Gu
- Department of Radiotherapy and Oncology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China,Ke Gu, ✉
| | - Yanjun Zhou
- Department of Radiotherapy and Oncology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China,*Correspondence: Yanjun Zhou, ✉
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22
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Sun X, Mao Y, Liu B, Gu K, Liu H, Du W, Li R, Zhang J. Mesenchymal Stem Cell-Derived Exosomes Enhance 3D-Printed Scaffold Functions and Promote Alveolar Bone Defect Repair by Enhancing Angiogenesis. J Pers Med 2023; 13:jpm13020180. [PMID: 36836414 PMCID: PMC9963484 DOI: 10.3390/jpm13020180] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 01/21/2023] Open
Abstract
The reconstruction of severe alveolar bone defects remains a complex and challenging field for clinicians. Three-dimensional-printed scaffolds can adapt precisely to the complicated shape of the bone defects, which is an alternative solution to bone tissue engineering. Our previous study constructed an innovative low-temperature 3D-printed silk fibroin/collagen I/nano-hydroxyapatite (SF/COL-I/nHA) composite scaffold with a stable structure and remarkable biocompatibility. However, the clinical translation of most scaffolds is limited by insufficient angiogenesis and osteogenesis. In this study, we investigated the effects of human umbilical cord mesenchymal-stem-cell-derived exosomes (hUCMSC-Exos) on bone regeneration, especially from the perspective of inducing angiogenesis. HUCMSC-Exos were isolated and characterized. In vitro, the effect of hUCMSC-Exos on the proliferation, migration, and tube formation of human umbilical vein endothelial cells (HUVECs) was examined. Moreover, the loading and release of hUCMSC-Exos on 3D-printed SF/COL-I/nHA scaffolds were evaluated. In vivo, hUCMSC-Exos and 3D-printed SF/COL-I/nHA scaffolds were implanted into alveolar bone defects, and bone regeneration and angiogenesis were investigated by micro-CT, HE staining, Masson staining, and immunohistochemical analysis. The results showed that hUCMSC-Exos stimulated HUVEC proliferation, migration, and tube formation in vitro, and the effect increased with increasing exosome concentrations. In vivo, the combination of hUCMSC-Exos and 3D-printed SF/COL-I/nHA scaffolds promoted alveolar bone defect repair by enhancing angiogenesis and osteogenesis. We constructed an elaborate cell-free bone-tissue-engineering system by combining hUCMSC-Exos with 3D-printed SF/COL-I/nHA scaffolds, potentially providing new ideas for treating alveolar bone defects.
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Affiliation(s)
- Xiaodi Sun
- Tianjin Stomatological Hospital, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China
| | - Yupu Mao
- Tianjin Stomatological Hospital, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China
| | - Beibei Liu
- Tianjin Stomatological Hospital, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China
- The Affiliated Stomatological Hospital of Nankai University, School of Medicine, Nankai University, Tianjin 300071, China
| | - Ke Gu
- Tianjin Stomatological Hospital, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China
| | - Han Liu
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Wei Du
- Tianjin Key Laboratory of Blood Cell Therapy Technology, Tianjin 300384, China
- Union Stem Cell & Gene Engineering Co., Ltd., Tianjin 300384, China
| | - Ruixin Li
- Tianjin Stomatological Hospital, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China
- Correspondence: (R.L.); (J.Z.)
| | - Jian Zhang
- The Affiliated Stomatological Hospital of Nankai University, School of Medicine, Nankai University, Tianjin 300071, China
- Correspondence: (R.L.); (J.Z.)
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23
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Zhou Y, Zhu J, Gu M, Gu K. Prognosis and Characterization of Microenvironment in Cervical Cancer Influenced by Fatty Acid Metabolism-Related Genes. J Oncol 2023; 2023:6851036. [PMID: 36936374 PMCID: PMC10017219 DOI: 10.1155/2023/6851036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 12/13/2022] [Accepted: 02/08/2023] [Indexed: 03/21/2023]
Abstract
Increasing evidence suggests that diverse activation patterns of metabolic signalling pathways may lead to molecular diversity of cervical cancer (CC). But rare research focuses on the alternation of fatty acid metabolism (FAM) in CC. Therefore, we constructed and compared models based on the expression of FAM-related genes from the Cancer Genome Atlas by different machine learning algorithms. The most reliable model was built with 14 significant genes by LASSO-Cox regression, and the CC cohort was divided into low-/high-risk groups by the median of risk score. Then, a feasible nomogram was established and validated by C-index, calibration curve, net benefit, and decision curve analysis. Furthermore, the hub genes among differential expression genes were identified and the post-transcriptional and translational regulation networks were characterized. Moreover, the somatic mutation and copy number variation landscapes were depicted. Importantly, the specific mutation drivers and signatures of the FAM phenotypes were excavated. As a result, the high-risk samples were featured by activated de novo fatty acid synthesis, epithelial to mesenchymal transition, angiogenesis, and chronic inflammation response, which might be caused by mutations of oncogenic driver genes in RTK/RAS, PI3K, and NOTCH signalling pathways. Besides the hyperactivity of cytidine deaminase and deficiency of mismatch repair, the mutations of POLE might be partially responsible for the mutations in the high-risk group. Next, the antigenome including the neoantigen and cancer germline antigens was estimated. The decreasing expression of a series of cancer germline antigens was identified to be related to reduction of CD8 T cell infiltration in the high-risk group. Then, the comprehensive evaluation of connotations between the tumour microenvironment and FAM phenotypes demonstrated that the increasing risk score was related to the suppressive immune microenvironment. Finally, the prediction of therapy targets revealed that the patients with high risk might be sensitive to the RAF inhibitor AZ628. Our findings provide a novel insight for personalized treatment in CC.
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Affiliation(s)
- Yanjun Zhou
- 1Department of Radiotherapy and Oncology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214000, China
| | - Jiahao Zhu
- 2Department of Outpatient Chemotherapy, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150000, China
| | - Mengxuan Gu
- 3Jiangnan University, Wuxi, Jiangsu 214000, China
| | - Ke Gu
- 1Department of Radiotherapy and Oncology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214000, China
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Li F, Guan Y, Wang P, Wang Z, Fang C, Gu K, Parkin SSP. All-electrical reading and writing of spin chirality. Sci Adv 2022; 8:eadd6984. [PMID: 36516254 DOI: 10.1126/sciadv.add6984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Spintronics promises potential data encoding and computing technologies. Spin chirality plays a very important role in the properties of many topological and noncollinear magnetic materials. Here, we propose the all-electrical detection and manipulation of spin chirality in insulating chiral antiferromagnets. We demonstrate that the spin chirality in insulating epitaxial films of TbMnO3 can be read electrically via the spin Seebeck effect and can be switched by electric fields via the multiferroic coupling of the spin chirality to the ferroelectric polarization. Moreover, multivalued states of the spin chirality can be realized by the combined application of electric and magnetic fields. Our results are a path toward next-generation, low-energy consumption memory and logic devices that rely on spin chirality.
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Affiliation(s)
- Fan Li
- NISE Department, Max Planck Institute of Microstructure Physics, Halle, Germany
| | - Yicheng Guan
- NISE Department, Max Planck Institute of Microstructure Physics, Halle, Germany
| | - Peng Wang
- NISE Department, Max Planck Institute of Microstructure Physics, Halle, Germany
| | - Zhong Wang
- NISE Department, Max Planck Institute of Microstructure Physics, Halle, Germany
| | - Chi Fang
- NISE Department, Max Planck Institute of Microstructure Physics, Halle, Germany
| | - Ke Gu
- NISE Department, Max Planck Institute of Microstructure Physics, Halle, Germany
| | - Stuart S P Parkin
- NISE Department, Max Planck Institute of Microstructure Physics, Halle, Germany
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25
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Huang J, Song Y, Kou X, Tan Z, Zhang S, Sun M, Zhou J, Fan M, Zhang M, Song Y, Li S, Yuan Y, Zhuang W, Zhang J, Zhang L, Jiang H, Gu K, Ye H, Wang Q, Zhu J. 69O First-line serplulimab versus placebo in combination with chemotherapy in PD-L1-positive oesophageal squamous cell carcinoma (ASTRUM-007): A randomised, double-blind, multicentre phase III study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
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26
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Qin S, Guo Y, Meng Z, Wu J, Gu K, Zhang T, Lin X, Lin H, Ying JE, Zhou F, Hsing-Tao K, Chao Y, Li S, Chen Y, Boisserie F, Abdrashitov R, Bai Y. LBA2 Tislelizumab (TIS) versus sorafenib (SOR) in first-line (1L) treatment of unresectable hepatocellular carcinoma (HCC): The RATIONALE-301 Chinese subpopulation analysis. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
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27
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Li H, Liu Y, Wang X, Chen Z, Wang J, Sun T, Li Q, Cheng J, Zhang Q, Wang X, Wang J, Gu K, Wei S, Zhang S, Wang X, Sun P, Hao C, Han C, Li Y, Kang X. Efficacy and safety of the biosimilar QL1206 compared with denosumab in breast cancer with bone metastases: subgroup analyses of a phase III study. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01531-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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28
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Gu K, Guan Y, Hazra BK, Deniz H, Migliorini A, Zhang W, Parkin SSP. Three-dimensional racetrack memory devices designed from freestanding magnetic heterostructures. Nat Nanotechnol 2022; 17:1065-1071. [PMID: 36138201 PMCID: PMC9576586 DOI: 10.1038/s41565-022-01213-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 08/09/2022] [Indexed: 06/16/2023]
Abstract
The fabrication of three-dimensional nanostructures is key to the development of next-generation nanoelectronic devices with a low device footprint. Magnetic racetrack memory encodes data in a series of magnetic domain walls that are moved by current pulses along magnetic nanowires. To date, most studies have focused on two-dimensional racetracks. Here we introduce a lift-off and transfer method to fabricate three-dimensional racetracks from freestanding magnetic heterostructures grown on a water-soluble sacrificial release layer. First, we create two-dimensional racetracks from freestanding films transferred onto sapphire substrates and show that they have nearly identical characteristics compared with the films before transfer. Second, we design three-dimensional racetracks by covering protrusions patterned on a sapphire wafer with freestanding magnetic heterostructures. We demonstrate current-induced domain-wall motion for synthetic antiferromagnetic three-dimensional racetracks with protrusions of up to 900 nm in height. Freestanding magnetic layers, as demonstrated here, may enable future spintronic devices with high packing density and low energy consumption.
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Affiliation(s)
- Ke Gu
- Max Planck Institute of Microstructure Physics, Halle, Germany.
| | - Yicheng Guan
- Max Planck Institute of Microstructure Physics, Halle, Germany
| | | | - Hakan Deniz
- Max Planck Institute of Microstructure Physics, Halle, Germany
| | | | - Wenjie Zhang
- Max Planck Institute of Microstructure Physics, Halle, Germany
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Sun W, Jin Y, Liu H, Yang D, Sun T, Wang Y, Fan Y, Fan X, Jin X, Wan L, Gu K, Feng Z, Liu Y, Mao P, Song T, Dequan W, Xiong D, Luan G, Wang X, Fan B, Xiao L. Short-term spinal cord stimulation is an effective therapeutic approach for herpetic-related neuralgia—A Chinese nationwide expert consensus. Front Aging Neurosci 2022; 14:939432. [PMID: 36204548 PMCID: PMC9530637 DOI: 10.3389/fnagi.2022.939432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 08/10/2022] [Indexed: 11/24/2022] Open
Abstract
Purpose Short-term spinal cord stimulation (st-SCS) has been widely used to treat herpetic-related neuralgia (HN) in China for several years, but is still heavily debated as it has no strong evidence in clinical application. Therefore, a questionnaire survey among the Chinese pain specialist workgroup of the Chinese Neuromodulation Society and Chinese Medical Doctor Association was carried out to achieve a consensus about the clinical use of st-SCS for HN treatment. Methods The contents of the questionnaire include basic information about doctors (hospital level, work experience, training, procedure numbers, etc.), efficacy, indications, and contraindications of st-SCS, operation conditions, and preoperative preparation of st-SCS, and the prospect of the st-SCS procedure. Initially, the survey was conducted on 110 experts who have practiced the st-SCS procedure from all over the provinces in China. Finally, valuable data was calculated from the 110 questionnaires excluding the doctors with <1 year of experience of st-SCS, <10 cases of procedures per year, and no standard training in SCS technique. Results Based on the 110 questionnaires, it is estimated that 5,000 to 10,000 cases of electrical stimulation are carried out nationwide each year. Sixty-nine valid questionnaires acquired from senior pain physicians were more valuable and specialized in the efficacy, indications, and contraindications of st-SCS for HN. It was commonly agreed (97.10%) that the HN patients with <3 months will obtain good effectiveness (patient satisfaction rate ≥50%). Almost all (98.55%) agreed that st-SCS can be used in SHN patients, there was a common agreement (72.46%) that AHN patients are an indication of st-SCS, and more than half agreement (53.62%) that st-SCS may be fit for early PHN (3–6 months). A common agreement (79.71%) was achieved that more than half of HN patients had the experience of nerve block or nerve pulsed RF. A similarly large number of experts 57/69 (82.61%) agreed that an 80% paresthesia coverage should be achieved at the test stimulation and 57/69 (82.61%) agreed that the treatment of st-SCS need be persistent for 1–2 weeks. Conclusions Early HN patients can get an effective outcome from the treatment of st-SCS and maybe the indication of st-SCS. Moreover, standardized training for pain physicians and basic research and clinical studies are warranted.
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Affiliation(s)
- Wuping Sun
- Department of Pain Medicine and Shenzhen Municipal Key Laboratory for Pain Medicine, Shenzhen Nanshan People's Hospital and the 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Yi Jin
- Department of Pain Management, Jinling Hospital, Nanjing, China
| | - Hongjun Liu
- Department of Pain Management, Jinling Hospital, Nanjing, China
| | - Dong Yang
- Department of Pain Medicine, Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Sun
- Department of Pain Management, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Yaping Wang
- Department of Pain Management and Anesthesiology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yinghui Fan
- Department of Pain Management and Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Xiaochong Fan
- Department of Pain Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaohong Jin
- Department of Pain Management, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Li Wan
- Department of Pain Management, The State Key Clinical Specialty in Pain Medicine, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Ke Gu
- Department of Pain Management, Sanbo Brain Hospital Capital Medical University, Beijing, China
| | - Zhiying Feng
- The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yiming Liu
- Department of Pain Medicine, Peking University People's Hospital, Beijing, China
| | - Peng Mao
- Department of Pain Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Tao Song
- Department of Pain Medicine, The First Hospital, China Medical University, Shenyang, China
| | - Wang Dequan
- People's Hospital of Xinjiang Uyghur Autonomous Region, Ürümqi, China
| | - Donglin Xiong
- Department of Pain Medicine and Shenzhen Municipal Key Laboratory for Pain Medicine, Shenzhen Nanshan People's Hospital and the 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Guoming Luan
- Department of Neurosurgery, Comprehensive Epilepsy Center, Sanbo Brain Hospital Capital Medical University, Beijing, China
| | - Xiaoping Wang
- Department of Pain Management, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Bifa Fan
- Department of Pain Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Lizu Xiao
- Department of Pain Medicine and Shenzhen Municipal Key Laboratory for Pain Medicine, Shenzhen Nanshan People's Hospital and the 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
- *Correspondence: Lizu Xiao
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Wang L, Qin S, Zhou Y, Zhang S, Sun X, Chen Z, Cui J, Zhao P, Gu K, Li Z, Wang J, Chen X, Yao J, Shen L, Zhou J, Wang G, Bai Y, Wang Q, Wang H. LBA61 HR070803 plus 5-FU/LV versus placebo plus 5-FU/LV in second-line therapy for gemcitabine-refractory locally advanced or metastatic pancreatic cancer: A multicentered, randomized, double-blind, parallel-controlled phase III trial (HR-IRI-APC). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.08.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Chavarria J, Dutra G, Jaffer I, Natarajan M, Falcao F, Cirne F, Velianou J, Duovi G, Abdelkhalek M, Keshavarz-Motamed Z, Gu K, Sheth T. 605 Validation Of Aortic Valve Computed Tomography Calcium Quantification In Contrast Computed Tomography. J Cardiovasc Comput Tomogr 2022. [DOI: 10.1016/j.jcct.2022.06.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Wang Z, Shi LS, Liu HL, Wang ZZ, Jiang XH, Chen HW, Yang G, Gu K, Ju WZ, Chen M. [Clinical characteristics and long-term follow-up results of radiofrequency ablation for the treatment of ventricular tachycardia in patients with arrhythmogenic left ventricular cardiomyopathy]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:549-555. [PMID: 35705463 DOI: 10.3760/cma.j.cn112148-20210927-00832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the acute and long-term outcome of catheter ablation for the treatment of ventricular tachycardia (VT) in patients with arrhythmogenic left ventricular cardiomyopathy (ALVC). Methods: This retrospective, cross-sectional study enrolled ALVC patients undergoing radiofrequency ablation for the treatment of VT at the First Affiliated Hospital of Nanjing Medical University from January 2011 to December 2018 and collected their clinical characteristics and intraoperative electrophysiological examination. Patients were followed up every 6 months after radiofrequency ablation until August 2021. Echocardiographic results and VT recurrence post radiofrequency ablation were analysed. Results: Totally 12 patients were enrolled (mean age: (42±15) years, 11 males(11/12)). The mean of left ventricular end diastolic diameter (LVDd) and left ventricular ejection fraction (LVEF) were (51±5)mm and (65±5)%, respectively. Twelve VTs were induced in 10 patients during the electrophysiological study, and the mean tachycardia cycle length was (293±65) ms. Three-dimensional substrate mapping revealed the diseased area at endocardial site in one patient, at epicardial sites in the other 11 patients (involved endocardial sites in 2 cases) with the basal part near the mitral annulus being the predilection for the substrate (10/11). After the catheter ablation at the endocardial and epicardial sites respectively, the complete procedure endpoint was achieved in all patients (VT cannot be induced post ablation). The median follow-up time was 65 (25, 123) months. One patient was lost to follow-up, and the other 11 patients survived without VT. No significant cardiac function deterioration was detected by the echocardiographic examination ((51±5)mm vs. (52±5)mm, P>0.05 for LVDd, (65±5)% vs. (60±6)%, P>0.05 for LVEF) at the end of follow-up. Conclusion: After radiofrequency ablation, the complete procedure endpoint is achieved in ALVC patients, and the catheter ablation provides long-term ventricular tachycardia control during the long-term follow-up.
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Affiliation(s)
- Z Wang
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210000 China
| | - L S Shi
- Department of Cardiology, Second Affiliated Hospital of Nantong University, Nantong 226001, China
| | - H L Liu
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210000 China
| | - Z Z Wang
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210000 China
| | - X H Jiang
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210000 China
| | - H W Chen
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210000 China
| | - G Yang
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210000 China
| | - K Gu
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210000 China
| | - W Z Ju
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210000 China
| | - Minglong Chen
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210000 China
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Bao Z, Cheng J, Zhu J, Ji S, Gu K, Zhao Y, Yu S, Meng Y. Using Weighted Gene Co-Expression Network Analysis to Identify Increased MND1 Expression as a Predictor of Poor Breast Cancer Survival. Int J Gen Med 2022; 15:4959-4974. [PMID: 35601002 PMCID: PMC9117423 DOI: 10.2147/ijgm.s354826] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 05/07/2022] [Indexed: 12/12/2022] Open
Abstract
Objective We used bioinformatics analysis to identify potential biomarker genes and their relationship with breast cancer (BC). Materials and Methods We used a weighted gene co-expression network analysis (WGCNA) to create a co-expression network based on the top 25% genes in the GSE24124, GSE33926, and GSE86166 datasets obtained from the Gene Expression Omnibus. We used the DAVID online platform to perform GO and KEGG pathway enrichment analyses and the Cytoscape CytoHubba plug-in to screen the potential genes. Then, we related the genes to prognostic values in BC using the Oncomine, GEPIA, and Kaplan–Meier Plotter databases. Findings were validated by immunohistochemical (IHC) staining in the Human Protein Atlas and the TCGA-BRCA cohort. LinkedOmics identified the interactive expressions of hub genes. We used UALCAN to evaluate the methylation levels of these hub genes. MethSurv and SurvivalMeth were used to assess the multilevel prognostic value. Finally, we assessed hub gene association with immune cell infiltration using TIMER. Results The mRNA levels of MKI67, UBE2C, GTSE1, CCNA2, and MND1 were significantly upregulated in BC, whereas ESR1, THSD4, TFF1, AGR2, and FOXA1 were significantly downregulated. The DNA methylation signature analysis showed a better prognosis in the low-risk group. Further subgroup analyses revealed that MND1 might serve as an independent risk factor for unfavorable BC prognosis. Additionally, MND1 expression levels positively correlate with the immune infiltration statuses of CD4+ T cells, CD8+ T cells, B cells, neutrophils, dendritic cells, and macrophages. Conclusion Our results indicate that the ten hub genes may be involved in BC’s carcinogenesis, development, or metastasis, and MND1 may be a potential biomarker and therapeutic target for BC.
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Affiliation(s)
- Zhaokang Bao
- Department of Oncology Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, Jiangsu, People’s Republic of China
| | - Jiale Cheng
- Department of Oncology Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, Jiangsu, People’s Republic of China
| | - Jiahao Zhu
- Department of Radiotherapy and Oncology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, People’s Republic of China
| | - Shengjun Ji
- Department of Radiotherapy and Oncology, The affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, Jiangsu, People’s Republic of China
| | - Ke Gu
- Department of Radiotherapy and Oncology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, People’s Republic of China
| | - Yutian Zhao
- Department of Radiotherapy and Oncology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, People’s Republic of China
| | - Shiyou Yu
- Department of Oncology Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, Jiangsu, People’s Republic of China
| | - You Meng
- Department of Oncology Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, Jiangsu, People’s Republic of China
- Correspondence: You Meng, Department of Oncology Surgery, The affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, 16 West Baita Road, Suzhou, Jiangsu, People’s Republic of China, Email
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Min X, Gu K, Zhang L, Jakhetiya V, Zhai G. Editorial: Computational Neuroscience for Perceptual Quality Assessment. Front Neurosci 2022; 16:876969. [PMID: 35418831 PMCID: PMC8999831 DOI: 10.3389/fnins.2022.876969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 03/01/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Xiongkuo Min
- Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Xiongkuo Min
| | - Ke Gu
- Faculty of Information Technology, Beijing University of Technology, Beijing, China
| | - Lu Zhang
- Univ Rennes, INSA Rennes, CNRS, IETR - UMR 6164, Rennes, France
| | - Vinit Jakhetiya
- Department of Computer Science Engineering, Indian Institute of Technology, Jammu, India
| | - Guangtao Zhai
- Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China
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Jiang Q, Liu Z, Gu K, Shao F, Zhang X, Liu H, Lin W. Single Image Super-Resolution Quality Assessment: A Real-World Dataset, Subjective Studies, and an Objective Metric. IEEE Trans Image Process 2022; 31:2279-2294. [PMID: 35239481 DOI: 10.1109/tip.2022.3154588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Numerous single image super-resolution (SISR) algorithms have been proposed during the past years to reconstruct a high-resolution (HR) image from its low-resolution (LR) observation. However, how to fairly compare the performance of different SISR algorithms/results remains a challenging problem. So far, the lack of comprehensive human subjective study on large-scale real-world SISR datasets and accurate objective SISR quality assessment metrics makes it unreliable to truly understand the performance of different SISR algorithms. We in this paper make efforts to tackle these two issues. Firstly, we construct a real-world SISR quality dataset (i.e., RealSRQ) and conduct human subjective studies to compare the performance of the representative SISR algorithms. Secondly, we propose a new objective metric, i.e., KLTSRQA, based on the Karhunen-Loéve Transform (KLT) to evaluate the quality of SISR images in a no-reference (NR) manner. Experiments on our constructed RealSRQ and the latest synthetic SISR quality dataset (i.e., QADS) have demonstrated the superiority of our proposed KLTSRQA metric, achieving higher consistency with human subjective scores than relevant existing NR image quality assessment (NR-IQA) metrics. The dataset and the code will be made available at https://github.com/Zhentao-Liu/RealSRQ-KLTSRQA.
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Gu K, Zhang W, Li X, Jia W. Self-Verifiable Attribute-Based Keyword Search Scheme for Distributed Data Storage in Fog Computing With Fast Decryption. IEEE Trans Netw Serv Manage 2022. [DOI: 10.1109/tnsm.2021.3123475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Li X, Liu S, Lu R, Khan MK, Gu K, Zhang X. An Efficient Privacy-Preserving Public Auditing Protocol for Cloud-Based Medical Storage System. IEEE J Biomed Health Inform 2022; 26:2020-2031. [PMID: 34990371 DOI: 10.1109/jbhi.2022.3140831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The booming Internet of Things makes smart healthcare a reality, while cloud-based medical storage systems solve the problems of large-scale storage and real-time access of medical data. The integrity of medical data outsourced in cloud-based medical storage systems has become crucial since only complete data can make a correct diagnosis, and public auditing protocol is a key technique to solve this problem. To guarantee the integrity of medical data and reduce the burden of the data owner, we propose an efficient privacy-preserving public auditing protocol for the cloud-based medical storage systems, which supports the functions of batch auditing and dynamic update of data. Detailed security analysis shows that our protocol is secure under the defined security model. In addition, we have conducted extensive performance evaluations, and the results indicate that our protocol not only remarkably reduces the computational costs of both the data owner and the third-party auditor (TPA), but also significantly improves the communication efficiency between the TPA and the cloud server. Specifically, compared with other related work, the computational cost of the TPA in our protocol is negligible and the data owner saves more than 2/3 of computational cost. In addition, as the number of challenged blocks increases, our protocol saves nearly 90% of communication overhead between the TPA and the cloud server.
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Xia Z, Mao X, Gu K, Jia WJ. Dual-Mode Data Forwarding Scheme Based on Interest Tags for Fog Computing-based SIoVs. IEEE Trans Netw Serv Manage 2022. [DOI: 10.1109/tnsm.2022.3161539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Nawaz S, Gu K, Fernandez F, Chen H, Bhat A, Gan G, Tan T. Utility of Myocardial Work in Predicting Cardiovascular Outcomes in a Diabetic Population. Heart Lung Circ 2022. [DOI: 10.1016/j.hlc.2022.06.302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Zhu J, Wu G, Zhao Y, Yang B, Chen Q, Jiang J, Meng Y, Ji S, Gu K. Epidemiology, Treatment and Prognosis Analysis of Small Cell Breast Carcinoma: A Population-Based Study. Front Endocrinol (Lausanne) 2022; 13:802339. [PMID: 35444614 PMCID: PMC9013885 DOI: 10.3389/fendo.2022.802339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 03/02/2022] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Primary small cell breast carcinoma (SCBC) is an uncommon malignancy with highly invasive behavior. The aim of this study was to find out more about the incidence, clinicopathologic characteristics and identify potential prognostic factors of SCBC. METHODS Data of patients with primary diagnosis of SCBC between 1975 and 2018 were extracted from the Surveillance, Epidemiology, and End Results (SEER) database. The incidence after adjustment for age and percentage change per year in incidence were calculated. Disease-specific survival (DSS) and overall survival (OS) were analyzed among these SCBC patients identified from the SEER database. The whole cohorts were randomized into training and validation cohorts as ratio of 7: 3. Cox regression analysis was performed to determine predictors of survival with the training cohorts. Predictive models were constructed with training cohorts, and nomogram validation was performed using receiver operating characteristic curves, concordance indices and calibration curves in both training and validation cohorts. RESULTS 323 SCBC patients were enrolled finally during the research period. The overall incidence after adjustment for age between 1990 and 2018 was 0.14 per million per year, and the prevalence of the incidence has plateaued. Most of these tumors were poorly differentiated or undifferentiated. The most prevalent presenting stage was Stage II. Patients identified in this study were randomly divided into training (n = 226) and testing (n = 97) cohorts. Multivariate Cox proportional hazards model showed that chemotherapy, surgery and stage were important predictors of DSS and OS. CONCLUSION SCBC is considered an infrequent breast neoplasm with aggressive characteristics. Tumor stage is associated with poor prognosis. Combination of surgery and chemotherapy is the main treatment for SCBC.
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Affiliation(s)
- Jiahao Zhu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Gang Wu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Yutian Zhao
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Bo Yang
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Qingqing Chen
- Department of Radiotherapy and Oncology, The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, China
| | - Jianwei Jiang
- Department of Breast Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, China
| | - You Meng
- Department of Breast Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, China
| | - Shengjun Ji
- Department of Radiotherapy and Oncology, The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, China
- *Correspondence: Shengjun Ji, ; Ke Gu,
| | - Ke Gu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, China
- *Correspondence: Shengjun Ji, ; Ke Gu,
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Gan G, Bhat A, Gu K, Chen H, Fernandez F, Thomas L. Left Ventricular Global Longitudinal Strain Predicts Adverse Cardiovascular Outcomes in Patients With Comorbid Chronic Kidney Disease and Diabetes Mellitus. Heart Lung Circ 2022. [DOI: 10.1016/j.hlc.2022.06.263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Gan G, Bhat A, Rao A, Gu K, Thangarajah M, Kean A, Michail D, Tanous D, Thomas L. Prevalence and Impact of Comorbid Atrial Fibrillation in Patients With Pulmonary Hypertension. Heart Lung Circ 2022. [DOI: 10.1016/j.hlc.2022.06.365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Cao Y, Qin S, Luo S, Li Z, Cheng Y, Fan Y, Sun Y, Yin X, Yuan X, Li W, Liu T, Hsu CH, Lin X, Kim SB, Kojima T, Zhang J, Lee SH, Bai Y, Muro K, Doi T, Bai C, Gu K, Pan HM, Bai L, Yang JW, Cui Y, Lu W, Chen J. Pembrolizumab versus chemotherapy for patients with esophageal squamous cell carcinoma enrolled in the randomized KEYNOTE-181 trial in Asia. ESMO Open 2021; 7:100341. [PMID: 34973513 DOI: 10.1016/j.esmoop.2021.100341] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/15/2021] [Accepted: 11/17/2021] [Indexed: 12/09/2022] Open
Abstract
BACKGROUND In the randomized phase III KEYNOTE-181 study, pembrolizumab prolonged overall survival (OS) compared with chemotherapy as second-line therapy in patients with advanced esophageal cancer and programmed death-ligand 1 (PD-L1) combined positive score (CPS) ≥10. We report a post hoc subgroup analysis of patients with esophageal squamous cell carcinoma (ESCC) enrolled in KEYNOTE-181 in Asia, including patients from the KEYNOTE-181 China extension study. PATIENTS AND METHODS Three hundred and forty Asian patients with advanced/metastatic ESCC were enrolled in KEYNOTE-181, including the China cohort. Patients were randomly assigned 1 : 1 to receive pembrolizumab 200 mg every 3 weeks for ≤2 years or investigator's choice of paclitaxel, docetaxel, or irinotecan. OS, progression-free survival, response, and safety were analyzed without formal comparisons. OS was evaluated based on PD-L1 CPS expression level. RESULTS In Asian patients with ESCC, median OS was 10.0 months with pembrolizumab and 6.5 months with chemotherapy [hazard ratio (HR), 0.63; 95% CI 0.50-0.80; nominal P < 0.0001]. Median progression-free survival was 2.3 months with pembrolizumab and 3.1 months with chemotherapy (HR, 0.79; 95% CI 0.63-0.99; nominal P = 0.020). Objective response rate was 17.1% with pembrolizumab and 7.1% with chemotherapy; median duration of response was 10.5 months and 7.7 months, respectively. In patients with PD-L1 CPS <1 tumors (pembrolizumab versus chemotherapy), the HR was 0.99 (95% CI 0.56-1.72); the HR (95% CI) for death was better for patients with PD-L1 CPS cut-offs >1 [CPS ≥1, 0.57 (0.44-0.75); CPS ≥5, 0.56 (0.41-0.76); CPS ≥10, 0.53 (0.37-0.75)]. Treatment-related adverse events were reported in 71.8% of patients in the pembrolizumab group and 89.8% in the chemotherapy group; grade 3-5 events were reported in 20.0% and 44.6%, respectively. CONCLUSIONS Pembrolizumab monotherapy demonstrated promising efficacy in Asian patients with ESCC, with fewer treatment-related adverse events than chemotherapy. PD-L1 CPS ≥1 is an appropriate cut-off and a predictive marker of pembrolizumab efficacy in Asian patients with ESCC.
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Affiliation(s)
- Y Cao
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China.
| | - S Qin
- PLA Cancer Centre of Nanjing Bayi Hospital, Nanjing, China
| | - S Luo
- The Affiliated Tumor Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Z Li
- Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Y Cheng
- Jilin Cancer Hospital, Jilin, China
| | - Y Fan
- Cancer Hospital of University of Chinese Academy of Sciences, Institute of Cancer and Basic Medicine of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Y Sun
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, and The Affiliated Hospital of Anhui Medical University, Hefei, China
| | - X Yin
- Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - X Yuan
- Tongji Hospital, Wuhan, China
| | - W Li
- Hubei Cancer Hospital, Wuhan, China
| | - T Liu
- Zhongshan Hospital, Fudan University, Shanghai, China
| | - C-H Hsu
- National Taiwan University Hospital, Taipei, Taiwan
| | - X Lin
- Fujian Medical University Union Hospital, Fuzhou, China
| | - S-B Kim
- Asan Medical Center, Seoul, South Korea
| | - T Kojima
- National Cancer Center Hospital East, Kashiwa, Japan
| | - J Zhang
- Ruijin Hospital, Shanghai, China
| | - S-H Lee
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Y Bai
- Harbin Medical University Cancer Hospital, Harbin, China
| | - K Muro
- Aichi Cancer Center Hospital, Nagoya, Japan
| | - T Doi
- National Cancer Center Hospital East, Kashiwa, Japan
| | - C Bai
- Peking Union Medical College Hospital, Beijing, China
| | - K Gu
- The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei, China
| | - H-M Pan
- Sir Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - L Bai
- Chinese PLA General Hospital, Beijing, China
| | - J-W Yang
- Fujian Province Cancer Hospital, Fuzhou, China
| | - Y Cui
- MSD China, Shanghai, China
| | - W Lu
- MSD China, Shanghai, China
| | - J Chen
- Jiangsu Cancer Hospital, Nanjing, China
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Liu G, Zheng J, Gu K, Wu C, Jia G, Zhao H, Chen X, Wang J. Calcium-sensing receptor protects intestinal integrity and alleviates the inflammatory response via the Rac1/PLCγ1 signaling pathway. Anim Biotechnol 2021:1-14. [PMID: 34762003 DOI: 10.1080/10495398.2021.1998090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
This study aimed to test the hypothesis that the calcium-sensing receptor (CaSR) can protect intestinal epithelial barrier integrity and decrease inflammatory response mediated by the Ras-related C3 botulinum toxin substrate 1 (Rac1)/phospholipase Cγ1 (PLC-γ1) signaling pathway. IPEC-J2 monolayers were treated without or with TNF-α in the absence or presence of CaSR antagonist (NPS 2143), CaSR overexpression, and Rac1 silencing, PLCγ1 silencing or spermine. Results showed that spermine increased transepithelial electrical resistance (TER), tight junction protein levels, the protein concentration of Rac1/PLC-γ1 signaling pathway, and decreased paracellular permeability in the presence of TNF-α. NPS2143 inhibited spermine-induced change in above-mentioned parameters. CaSR overexpression increased TER, the levels of tight junction proteins and the protein concentration of CaSR, phosphorylated PLCγ1, Rac1, and IP3, and decreased paracellular permeability and contents of interleukin-8 (IL-8) and TNF-α after TNF-α challenge. Rac1 and PLCγ1 silencing inhibited CaSR-induced increase in barrier function and the protein concentration of phosphorylated PLCγ1, Rac1, and IP3, and decrease in contents of IL-8 and TNF-α after TNF-α challenge. These results suggest that CaSR activation protects intestinal integrity and alleviates the inflammatory response by activating Rac1 and PLCγ1 signaling after TNF-α challenge, and spermine can maintain barrier function via CaSR/Rac1/PLC-γ1 pathway.
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Affiliation(s)
- Guangmang Liu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, Sichuan, China.,Key laboratory of Animal Disease-resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, Sichuan, China
| | - Jie Zheng
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, Sichuan, China.,Key laboratory of Animal Disease-resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, Sichuan, China
| | - Ke Gu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, Sichuan, China.,Key laboratory of Animal Disease-resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, Sichuan, China
| | - Caimei Wu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, Sichuan, China.,Key laboratory of Animal Disease-resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, Sichuan, China
| | - Gang Jia
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, Sichuan, China.,Key laboratory of Animal Disease-resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, Sichuan, China
| | - Hua Zhao
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, Sichuan, China.,Key laboratory of Animal Disease-resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, Sichuan, China
| | - Xiaoling Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, Sichuan, China.,Key laboratory of Animal Disease-resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, Sichuan, China
| | - Jing Wang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, China
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Liu G, Gu K, Wang F, Jia G, Zhao H, Chen X, Wu C, Zhang R, Tian G, Cai J, Tang J, Wang J. Tryptophan Ameliorates Barrier Integrity and Alleviates the Inflammatory Response to Enterotoxigenic Escherichia coli K88 Through the CaSR/Rac1/PLC-γ1 Signaling Pathway in Porcine Intestinal Epithelial Cells. Front Immunol 2021; 12:748497. [PMID: 34745120 PMCID: PMC8566706 DOI: 10.3389/fimmu.2021.748497] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 10/05/2021] [Indexed: 12/15/2022] Open
Abstract
Background Impaired intestinal barrier integrity plays a crucial role in the development of many diseases such as obesity, inflammatory bowel disease, and type 2 diabetes. Thus, protecting the intestinal barrier from pathological disruption is of great significance. Tryptophan can increase gut barrier integrity, enhance intestinal absorption, and decrease intestinal inflammation. However, the mechanism of tryptophan in decreasing intestinal barrier damage and inflammatory response remains largely unknown. The objective of this study was to test the hypothesis that tryptophan can enhance intestinal epithelial barrier integrity and decrease inflammatory response mediated by the calcium-sensing receptor (CaSR)/Ras-related C3 botulinum toxin substrate 1 (Rac1)/phospholipase Cγ1 (PLC-γ1) signaling pathway. Methods IPEC-J2 cells were treated with or without enterotoxigenic Escherichia coli (ETEC) K88 in the absence or presence of tryptophan, CaSR inhibitor (NPS-2143), wild-type CaSR overexpression (pcDNA3.1-CaSR-WT), Rac1-siRNA, and PLC-γ1-siRNA. Results The results showed that ETEC K88 decreased the protein concentration of occludin, zonula occludens-1 (ZO-1), claudin-1, CaSR, total Rac1, Rho family member 1 of porcine GTP-binding protein (GTP-rac1), phosphorylated phospholipase Cγ1 (p-PLC-γ1), and inositol triphosphate (IP3); suppressed the transepithelial electrical resistance (TEER); and enhanced the permeability of FITC-dextran compared with the control group. Compared with the control group, 0.7 mM tryptophan increased the protein concentration of CaSR, total Rac1, GTP-rac1, p-PLC-γ1, ZO-1, claudin-1, occludin, and IP3; elevated the TEER; and decreased the permeability of FITC-dextran and contents of interleukin-8 (IL-8) and TNF-α. However, 0.7 mM tryptophan+ETEC K88 reversed the effects induced by 0.7 mM tryptophan alone. Rac1-siRNA+tryptophan+ETEC K88 or PLC-γ1-siRNA+tryptophan+ETEC K88 reduced the TEER, increased the permeability of FITC-dextran, and improved the contents of IL-8 and TNF-α compared with tryptophan+ETEC K88. NPS2143+tryptophan+ETEC K88 decreased the TEER and the protein concentration of CaSR, total Rac1, GTP-rac1, p-PLC-γ1, ZO-1, claudin-1, occludin, and IP3; increased the permeability of FITC-dextran; and improved the contents of IL-8 and TNF-α compared with tryptophan+ETEC K88. pcDNA3.1-CaSR-WT+Rac1-siRNA+ETEC K88 and pcDNA3.1-CaSR-WT+PLC-γ1-siRNA+ETEC K88 decreased the TEER and enhanced the permeability in porcine intestine epithelial cells compared with pcDNA3.1-CaSR-WT+ETEC K88. Conclusion Tryptophan can improve intestinal epithelial barrier integrity and decrease inflammatory response through the CaSR/Rac1/PLC-γ1 signaling pathway.
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Affiliation(s)
- Guangmang Liu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, China
- Key Laboratory of Animal Disease-Resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Ke Gu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, China
- Key Laboratory of Animal Disease-Resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Fang Wang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, China
- Key Laboratory of Animal Disease-Resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Gang Jia
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, China
- Key Laboratory of Animal Disease-Resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Hua Zhao
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, China
- Key Laboratory of Animal Disease-Resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Xiaoling Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, China
- Key Laboratory of Animal Disease-Resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Caimei Wu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, China
- Key Laboratory of Animal Disease-Resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Ruinan Zhang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, China
- Key Laboratory of Animal Disease-Resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Gang Tian
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, China
- Key Laboratory of Animal Disease-Resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Jingyi Cai
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, China
- Key Laboratory of Animal Disease-Resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Jiayong Tang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory for Animal Disease-Resistance Nutrition, Ministry of Education, Chengdu, China
- Key Laboratory of Animal Disease-Resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Jing Wang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
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Bawor M, Gu K, Um K, Dennis B, Leong D. Ejection dynamics in native aortic valve stenosis using echocardiography: can it be helpful? Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The assessment of aortic stenosis (AS) severity has a major impact on the management of affected patients. Ejection dynamics, including acceleration time (AT), ejection time (ET), and acceleration time/ejection time ratio (AT/ET) measured using doppler echocardiography are established in the evaluation of prosthetic aortic valve stenosis with high sensitivity and specificity. However, their clinical utility in native AS has not been well described.
Purpose
The aim of this systematic review was to evaluate the diagnostic accuracy of ejection dynamics to identify severe AS and to assess whether ejection dynamics can differentiate low flow, low gradient severe AS from pseudo-severe AS.
Methods
We conducted a systematic review of Medline, Embase, and Web of Science from database inception until January 2021. We included observational studies and randomized controlled trials (RCTs) in which the diagnostic accuracy of ejection dynamics by doppler echocardiography for severe AS was compared with standard echocardiographic diagnostic criteria including peak velocity, mean pressure gradient, aortic valve area, and dimensionless index. Studies were eligible if they included AS of at least mild severity. Two authors independently screened and extracted data.
Results
We included 12 studies in the review (RCT=1, observational=11) with a total of 5182 participants. There was significant inconsistency in outcome measurement and reporting of results therefore a meta-analysis was not suitable. We used narrative synthesis to report our results. All included studies used standard echocardiographic criteria to ascertain the presence of severe AS. Mean age was 72 years and 53% of the participants were male. 1983 participants (38.3%) were classified as having severe AS. AT >94–109ms had sensitivity of 74–92% and specificity of 72–89% at identifying severe AS. AT/ET >0.34–0.35 showed sensitivity of 67–77% and specificity of 68–100%. Only one study compared low-flow, low-gradient AS with pseudo-severe AS, showing that an AT >100ms had sensitivity 62%, specificity 76%; and AT/ET >0.33, sensitivity 65%, specificity 84%. Data for ET showed insufficient consistency and diagnostic accuracy.
Conclusions
AT and AT/ET may be useful to corroborate the presence of severe AS. However, more research is needed to understand whether these parameters add incremental prognostic value to standard echocardiographic measures of AS severity.
Funding Acknowledgement
Type of funding sources: None. Summary of evidence search and selection
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Affiliation(s)
- M Bawor
- Queen Elizabeth Hospital, Lewisham & Greenwich NHS Trust, Department of Medicine, London, United Kingdom
| | - K Gu
- McMaster University, Division of Cardiology, Hamilton, Canada
| | - K Um
- McMaster University, Division of Cardiology, Hamilton, Canada
| | - B Dennis
- McMaster University, Division of Cardiology, Hamilton, Canada
| | - D Leong
- Population Health Research Institute, Hamilton, Canada
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Gu K, Liu H, Xia Z, Qiao J, Lin W, Thalmann D. PM₂.₅ Monitoring: Use Information Abundance Measurement and Wide and Deep Learning. IEEE Trans Neural Netw Learn Syst 2021; 32:4278-4290. [PMID: 34460393 DOI: 10.1109/tnnls.2021.3105394] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This article devises a photograph-based monitoring model to estimate the real-time PM2.5 concentrations, overcoming currently popular electrochemical sensor-based PM2.5 monitoring methods' shortcomings such as low-density spatial distribution and time delay. Combining the proposed monitoring model, the photographs taken by various camera devices (e.g., surveillance camera, automobile data recorder, and mobile phone) can widely monitor PM2.5 concentration in megacities. This is beneficial to offering helpful decision-making information for atmospheric forecast and control, thus reducing the epidemic of COVID-19. To specify, the proposed model fuses Information Abundance measurement and Wide and Deep learning, dubbed as IAWD, for PM2.5 monitoring. First, our model extracts two categories of features in a newly proposed DS transform space to measure the information abundance (IA) of a given photograph since the growth of PM2.5 concentration decreases its IA. Second, to simultaneously possess the advantages of memorization and generalization, a new wide and deep neural network is devised to learn a nonlinear mapping between the above-mentioned extracted features and the groundtruth PM2.5 concentration. Experiments on two recently established datasets totally including more than 100 000 photographs demonstrate the effectiveness of our extracted features and the superiority of our proposed IAWD model as compared to state-of-the-art relevant computing techniques.
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Gu K, Liu G, Wu C, Jia G, Zhao H, Chen X, Tian G, Cai J, Zhang R, Wang J. Tryptophan improves porcine intestinal epithelial cell restitution through the CaSR/Rac1/PLC-γ1 signaling pathway. Food Funct 2021; 12:8787-8799. [PMID: 34374393 DOI: 10.1039/d1fo01075a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study aimed to investigate the effect of tryptophan on cell migration and its underlying mechanism in porcine intestine epithelial cells (IPEC-J2). This study shows that tryptophan can modulate IPEC-J2 cell proliferation, enhance cell migration and the protein concentration of calcium-sensing receptors (CaSR), total ras-related C3 botulinum toxin substrate 1 (total Rac1), Rho family member 1 of GTP-binding protein (GTP-rac1), and phosphorylated phospholipase Cγ1 (p-PLC-γ1). Moreover, Rac1, phospholipase C-γ1 (PLC-γ1) silencing or CaSR inhibitor (NPS2143) inhibited tryptophan-induced upregulation of cell migration. In contrast, tryptophan enhanced the cell migration area and protein concentration of total Rac1, GTP-rac1, and phosphorylated PLCγ1 in cells transfected with wild type CaSR. The overexpression of CaSR increased cell migration, which was reduced by Rac1 or PLC-γ1 silencing. Collectively, our results suggested that tryptophan can improve IPEC-J2 cell migration through the CaSR/Rac1/PLC-γ1 signaling pathway.
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Affiliation(s)
- Ke Gu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, Sichuan, China. and Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Chengdu 611130, Sichuan, China
| | - Guangmang Liu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, Sichuan, China. and Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Chengdu 611130, Sichuan, China
| | - Caimei Wu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, Sichuan, China. and Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Chengdu 611130, Sichuan, China
| | - Gang Jia
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, Sichuan, China. and Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Chengdu 611130, Sichuan, China
| | - Hua Zhao
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, Sichuan, China. and Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Chengdu 611130, Sichuan, China
| | - Xiaoling Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, Sichuan, China. and Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Chengdu 611130, Sichuan, China
| | - Gang Tian
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, Sichuan, China. and Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Chengdu 611130, Sichuan, China
| | - Jingyi Cai
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, Sichuan, China. and Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Chengdu 611130, Sichuan, China
| | - Ruinan Zhang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, Sichuan, China. and Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Chengdu 611130, Sichuan, China
| | - Jing Wang
- Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
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Xia Z, Fang Z, Gu K, Wang J, Tan J, Wang G. Effective charging identity authentication scheme based on fog computing in V2G networks. Journal of Information Security and Applications 2021. [DOI: 10.1016/j.jisa.2020.102649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Guo N, Gu K, Qiao J, Bi J. Improved deep CNNs based on Nonlinear Hybrid Attention Module for image classification. Neural Netw 2021; 140:158-166. [PMID: 33765531 DOI: 10.1016/j.neunet.2021.01.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 10/18/2020] [Accepted: 01/07/2021] [Indexed: 11/27/2022]
Abstract
Recent years have witnessed numerous successful applications of incorporating attention module into feed-forward convolutional neural networks. Along this line of research, we design a novel lightweight general-purpose attention module by simultaneously taking channel attention and spatial attention into consideration. Specifically, inspired by the characteristics of channel attention and spatial attention, a nonlinear hybrid method is proposed to combine such two types of attention feature maps, which is highly beneficial to better network fine-tuning. Further, the parameters of each attention branch can be adjustable for the purpose of making the attention module more flexible and adaptable. From another point of view, we found that the currently popular SE, and CBAM modules are actually two particular cases of our proposed attention module. We also explore the latest attention module ADCM. To validate the module, we conduct experiments on CIFAR10, CIFAR100, Fashion MINIST datasets. Results show that, after integrating with our attention module, existing networks tend to be more efficient in training process and have better performance as compared with state-of-the-art competitors. Also, it is worthy to stress the following two points: (1) our attention module can be used in existing state-of-the-art deep architectures and get better performance at a small computational cost; (2) the module can be added to existing deep architectures in a simple way through stacking the integration of networks block and our module.
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Affiliation(s)
- Nan Guo
- Beijing Key Laboratory of Computational Intelligence and Intelligent System, Faculty of Information Technology, Beijing University of Technology, Beijing 100124, China
| | - Ke Gu
- Beijing Key Laboratory of Computational Intelligence and Intelligent System, Faculty of Information Technology, Beijing University of Technology, Beijing 100124, China
| | - Junfei Qiao
- Beijing Key Laboratory of Computational Intelligence and Intelligent System, Faculty of Information Technology, Beijing University of Technology, Beijing 100124, China.
| | - Jing Bi
- Beijing Key Laboratory of Computational Intelligence and Intelligent System, Faculty of Information Technology, Beijing University of Technology, Beijing 100124, China
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